Highly efficient hydrogen generation from hydrous hydrazine over amorphous Ni0.9Pt0.1/Ce2O3 nanocatalyst at room temperature

Abstract

Amorphous Ni_0.9Pt_0.1/Ce₂O₃ nanoparticles with low noble-metal content have been facilely synthesized by a co-reduction route within 10 min at room temperature under ambient atmosphere. The resultant Ni_0.9Pt_0.1/Ce₂O₃ nanoparticles were successfully applied as a highly efficient catalyst for rapid and complete conversion of hydrous hydrazine. A high initial turnover frequency value of 28.1 h⁻¹ for Ni_0.9Pt_0.1/Ce₂O₃ nanoparticles is achieved with 100% H₂ selectivity at 298 K. Moreover, the amorphous Ni_0.9Pt_0.1/Ce₂O₃ catalyst obtained due to the addition of Ce₂O₃ demonstrates much better activity and much lower activation energy than that of the crystalline Ni_0.9Pt_0.1. The development of the improved performance and low-cost catalyst is a promising step towards the application of hydrous hydrazine as a hydrogen storage material.